Aesthetics became a philosophical subject in the eighteenth century and a political one almost at once.
Baumgarten named the field; Kant gave it structure in the Critique of Judgment (1790). His account of taste is still the starting point. To call something beautiful is to take pleasure in its form without wanting to own or use it, and to expect others to agree, though no rule can be produced that settles the matter. That combination is what makes taste a philosophical problem instead of a catalog of preferences.
Schiller drew the political conclusion five years later. Writing after the Terror, the Letters on the Aesthetic Education of Man (1795) ask why a revolution made in the name of reason ended in blood. His answer was that the French had been handed a freedom they were not yet formed to hold. Liberty cannot be decreed onto people driven by raw need or by abstract principle alone. What prepares them is aesthetic play, in which sense and form work together, and this makes art a training ground for citizenship. The argument resurfaces wherever education is defended as a precondition of democracy and not a service it provides.
Nietzsche went further, treating art as the basic human response to existence and philosophy itself as a kind of making. Walter Benjamin then located the danger at the other end. Fascism, he wrote in 1935, aestheticizes politics: it offers the masses spectacle and the feeling of self-expression while changing nothing about their conditions. Communism, he answered, politicizes art.
The tradition has never settled the question Benjamin opened. Aesthetic experience may be where people are made fit for freedom. It may also be the most effective instrument ever devised for making them feel free while they are not.